The gliding distance in three directions was normalized using the length, width, and height of the trapezium and defined as the gliding ratio.
Hence for the trapezium of order j; the ordinate and the width of the base are expressed respectively by Eqs.
Ordinate of the base of the trapezium of order j.
Angle between the end of the base of the trapezium of order j with the vertical.
In some instances, a vertical split fracture of the trapezium may occur, with the pullout effect of the intact RCL and axial loading of the metacarpal base on the trapezium.
A good preparation of the base of the first metacarpal will give excellent exposure of the trapezium, the most important stage of the operation.
Two different mechanism of injury have been proposed for CMC dislocation and associated fractures of the trapezium [1, 2, 16].
Based on Fourier optics the mathematical formulation describing diffraction dispersion of light from a relief grating of the trapezium profile is derived.
The stars of the Trapezium, along with many other stars, are still in their early years.
The geometric center of the trapezium and 1st metacarpal joint (G_TM1J), the trapezium distal ulnar end of tubercle (TDUET), the trapezium distal radial end of tubercle (TDRET), and the dorsal end were used to establish the coordinate system of the trapezium.
